Question

I have been a curious , whether is this possible in SQL

Here is my table

Text
-----
India 01/01/2001 Mumbai
SriLanka 01/01/2001 Colombo
USA 01/01/2001 Chicago

From these create table separate columns (separated by space) like

Country     Date        Location  
-----       -----       -------- 
India       01/01/2001   Mumbai
SriLanka    01/01/2001   Colombo
USA         01/01/2001   Chicago

Only thing that structs me over here is regex that we do in JAVA.

Is something like possible in SQL as well.

Thanks !!!

Answer 1

You could split the columns with a table-valued function like this:

CREATE FUNCTION [dbo].[fnParseFields] ( @str NVARCHAR(max), @delimiter NCHAR )
RETURNS @retval TABLE(Country NVARCHAR(max), [Date] NVARCHAR(max), Location NVARCHAR(max))
AS
BEGIN
    declare @f1 varchar(max), @f2 varchar(max), @f3 varchar(max);
    set @str=ltrim(@str);

    -- Field 1
    set @f1=(left(@str,CHARINDEX(@delimiter,@str,1)-1));
    SET @str=RIGHT(@str,LEN(@str)-CHARINDEX(@delimiter,@str,1));

    -- Field 2
    set @f2=(left(@str,CHARINDEX(@delimiter,@str,1)-1));

    -- Field 3
    SET @f3=RIGHT(@str,LEN(@str)-CHARINDEX(@delimiter,@str,1));
    insert into @retval values (@f1,@f2,@f3);

    RETURN;
END

GO

create table myText (sometext varchar(80));

insert into myText values
('India 01/01/2001 Mumbai')
, ('SriLanka 01/01/2001 Colombo')
, ('USA 01/01/2001 Chicago');
go

select f.* from myText
cross apply [dbo].[fnParseFields](sometext,' ') f
go

Result: